I can’t change my alarm sound default setting

That is not helpful. That does not explain why it’s not possible to change the default sound. It seems like that would be an easy thing for the iOS to do.

Hello and welcome to Apple Support Communities, Getmeup,

If we understand your post correctly, you'd like to change the default alarm sound on your iPhone. We’d like to help.

The default sound is fixed and can't be changed. You can change the sound when you're setting alarm. Follow these steps:

"How to set an alarm

1. Open the Clock app, then tap the Alarm tab.
2. Tap the Add button .
3. Set a time for the alarm. You can also choose one of these options:

• Repeat: Tap to set up a recurring alarm.
• Label: Tap to name your alarm.
• Sound: Tap to pick a sound that plays when the alarm sounds.
• Snooze: Turn on to see a Snooze option when the alarm sounds.

4. Tap Save."

See the full article here:

How to set and change alarms on your iPhone - Apple Support

Let us know if that resolves this issue for you.

Thanks for using the Apple Support Communities.

How do you permanently change the default alarm sound? Every time I ask Siri to set an alarm, I have to go manually change it to the sound I want. How do you set it in a way where it will always be the sound I've selected once?